Search Results - "Duncan, B. N"
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Emissions of nitrogen oxides from US urban areas: estimation from Ozone Monitoring Instrument retrievals for 2005–2014
Published in Atmospheric chemistry and physics (21-09-2015)“…Satellite remote sensing of tropospheric nitrogen dioxide (NO2) can provide valuable information for estimating surface nitrogen oxides (NOx) emissions. Using…”
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2
Implications of carbon monoxide bias for methane lifetime and atmospheric composition in chemistry climate models
Published in Atmospheric chemistry and physics (23-10-2015)“…A low bias in carbon monoxide (CO) at northern high and mid-latitudes is a common feature of chemistry climate models (CCMs) that may indicate or contribute to…”
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Tropospheric ozone variability in the tropics from ENSO to MJO and shorter timescales
Published in Atmospheric chemistry and physics (22-07-2015)“…Aura OMI and MLS measurements are combined to produce daily maps of tropospheric ozone beginning October 2004. We show that El Niño-Southern Oscillation (ENSO)…”
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4
Global budget of CO, 1988–1997: Source estimates and validation with a global model
Published in Journal of Geophysical Research - Atmospheres (27-11-2007)“…We present a model study of carbon monoxide for 1988–1997 using the GEOS‐Chem 3‐D model driven by assimilated meteorological data, with time‐varying emissions…”
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Tropospheric ozone determined from Aura OMI and MLS: Evaluation of measurements and comparison with the Global Modeling Initiative's Chemical Transport Model
Published in Journal of Geophysical Research - Atmospheres (16-10-2006)“…Ozone measurements from the OMI and MLS instruments on board the Aura satellite are used for deriving global distributions of tropospheric column ozone (TCO)…”
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Modelling future changes in surface ozone: a parameterized approach
Published in Atmospheric chemistry and physics (21-02-2012)“…This study describes a simple parameterization to estimate regionally averaged changes in surface ozone due to past or future changes in anthropogenic…”
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NASA A-Train and Terra observations of the 2010 Russian wildfires
Published in Atmospheric chemistry and physics (08-09-2011)“…Wildfires raged throughout western Russia and parts of Eastern Europe during a persistent heat wave in the summer of 2010. Anomalously high surface…”
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Observationally derived transport diagnostics for the lowermost stratosphere and their application to the GMI chemistry and transport model
Published in Atmospheric chemistry and physics (01-01-2007)“…Transport from the surface to the lowermost stratosphere (LMS) can occur on timescales of a few months or less, making it possible for short-lived tropospheric…”
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A multi-model assessment of pollution transport to the Arctic
Published in Atmospheric chemistry and physics (10-09-2008)“…We examine the response of Arctic gas and aerosol concentrations to perturbations in pollutant emissions from Europe, East and South Asia, and North America…”
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Biomass burning influence on high-latitude tropospheric ozone and reactive nitrogen in summer 2008: a multi-model analysis based on POLMIP simulations
Published in Atmospheric chemistry and physics (03-06-2015)“…We have evaluated tropospheric ozone enhancement in air dominated by biomass burning emissions at high latitudes (> 50° N) in July 2008, using 10 global…”
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Model study of the cross-tropopause transport of biomass burning pollution
Published in Atmospheric chemistry and physics (17-07-2007)“…We present a modeling study of the troposphere-to-stratosphere transport (TST) of pollution from major biomass burning regions to the tropical upper…”
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A modeling study of the export pathways of pollution from Europe: Seasonal and interannual variations (1987–1997)
Published in Journal of Geophysical Research - Atmospheres (27-04-2004)“…We present a study of the export pathways of pollution from Europe from 1987 to 1997, using a three‐dimensional model of chemistry and transport. The dominant…”
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Assessment and applications of NASA ozone data products derived from Aura OMI/MLS satellite measurements in context of the GMI chemical transport model
Published in Journal of geophysical research. Atmospheres (16-05-2014)“…Measurements from the Ozone Monitoring Instrument (OMI) and Microwave Limb Sounder (MLS), both on board the Aura spacecraft, have been used to produce daily…”
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Recent biomass burning in the tropics and related changes in tropospheric ozone
Published in Geophysical research letters (16-08-2009)“…Biomass burning in the tropics is set intentionally during dry season each year to destroy agricultural waste and clear land for human expansion. These burning…”
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The unique OMI HCHO/NO2 feature during the 2008 Beijing Olympics: Implications for ozone production sensitivity
Published in Atmospheric environment (1994) (01-06-2011)“…In preparation of the Beijing Summer Olympic and Paralympics Games, strict emission control measures (ECMs) were imposed between July and September 2008 on…”
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Effects of the 2006 El Niño on tropospheric ozone and carbon monoxide: implications for dynamics and biomass burning
Published in Atmospheric chemistry and physics (02-07-2009)“…We have studied the effects of the 2006 El Niño on tropospheric O3 and CO at tropical and sub-tropical latitudes measured from the OMI and MLS instruments on…”
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The carbon monoxide tape recorder
Published in Geophysical research letters (01-06-2006)“…Using Aura MLS data we have identified the stratospheric ‘tape recorder’ in carbon monoxide (CO). Unlike the water vapor tape recorder, which is forced by the…”
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The influence of foreign vs. North American emissions on surface ozone in the US
Published in Atmospheric chemistry and physics (27-07-2009)“…As part of the Hemispheric Transport of Air Pollution (HTAP; http:// www.htap.org) project, we analyze results from 15 global and 1 hemispheric chemical…”
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The influence of European pollution on ozone in the Near East and northern Africa
Published in Atmospheric chemistry and physics (25-04-2008)“…We present a modeling study of the long-range transport of pollution from Europe, showing that European emissions regularly elevate surface ozone by as much as…”
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Indonesian wildfires of 1997: Impact on tropospheric chemistry
Published in Journal of Geophysical Research - Atmospheres (16-08-2003)“…The Indonesian wildfires of 1997 released large amounts of trace gases and aerosols (e.g., ∼130 Tg of carbon monoxide (CO)) from September to November. Using…”
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